Demountable rim



Nov. 9; 1926. 1,606,241

F, R. KLAUS DEMOUNTABLE RIM Original Filed Oct, 6v 1921 ll l y l l I I lan ma H01 Passed Nov. e, 192e.'

' UNE'EED STATES Maarn Parser arrivee.;

FRED R. KLAS, OIF-WARREN, OHIO, ASSIGNOR TO THE AMERICAN WELDING v.ANDMANUFACTURING COMPANY, OF W'ARREN, OHIO, A' CORPORATION OF OHIO.

DEMOUN'I'ABLE RIM.

Application led October 6,1921, Serial No. 505.906. Renewed March 23,1926'. y

This invention relates to improvements in split demountable rims and hasas its object the provision of means to holdgthe ends of the rim inposition to prevent relative movement in service.

A further object is vto provide a rim easily collapsible so that apneumatic tire can be easily put on and taken off.

A further object is to provide a simple and efficient construction whichcan be maiiufactured cheaply to accomplishvthe abovev The rim generallydesignated 1V is shown.

with integral tire retaining iianges 2 and 3. This rim is splitpreferably at one point only. Secured to the end 4 of the rim is a plate5 carrying driving lug 6 to engage with a ysuitable aperture 7 in thefelly 8 of the wheel.

The plate or tongue 5 may be riveted or otherwise fastened to the baseof the rim and extends beyond the end of the rim terminating in a hook 9to engage in aperture 10 of the other end 11 of the rim. The aperture 10in the end 11 of the rim is formed by striking down a lip 12 from thebase of they rim. The hook 9 and lip 12 are formed with surfaces obliqueto the main body member of the tongue 5 and base of the rimrespectively. The oblique surfaces of the tongue 9 and the lip 12 engageto prevent relative radial movement of the ends of the rim, when a rimis in position on a wheel or when the rim is carrying a pneumatic tireinflated. In order to collapse the rim when it is demounted from thewheel to remove they tire it is necessary either to first expand the rimcircumferentially and then press down on the end 4 of the rim in orderthat the corner 13 of hook 9 may pass the corner 14 of the lip 12, orpressure can simply be applied to the end 4 of the rim to causesimultaneous expansion of the rim and movement of hook 9 radially inwardfor it In this figureA pass the lip 12 in orderthat the end 4 of A therim may underlie the end'll. When dinary procedure with a splitdemountalole Y rim. The relative circumferential movement of the endsofthe rim is limited by the size of theaperture l0 and should be onlysufficient to permit easy ,movementrof the hook 9 on lip 12` asfthev rimis collapsed or as it is snapped into tire holding position. An aperture15 isyprovided for the valve stem o-f the inner tube used with a tire.`VIn Fig. 3 the rim is shown mounted'ona conventional wood felly carryinga metal felly band and the rim vis'held in` position with an ordinarybolt and wedge device.

It will thus be seen that I have provided asimple and eflicient means toprevent relative movement between the ends of the rim when in service.When the hook 9 is in engagement with the aperture of the other end ofthe rim, lateral movement of the ends of the rim is prevented,relatively radial movement of the ends of the rim is prevented without alimited circumferential movement thereof and whenever a tire is mountedupon therim and inflated the air pressure will prevent circumferentialmovement whether the rim be mounted as a spare upon the tire carrier, orin service upon the wheel. When the tire is-deflated and the rim isdemounted it is easy to collapse the rim, for the obliquefengaging edgesof thehook 9 and the lip 12 simply form a wedge means to aid inaccomplishing the circumferential expansion of the rim to permit thehook to clear the lip. When this is done the rim is easily collapsed andthe tire removed. If the tire becomes deflated when the rim is mountedon the wheel the rim 'cannot collapse as the amount of circumferentialmovement be-` tween the rim ends when said turned end of plate is inengagement with the opening in the rim base.,

2. V A one vpiece transplit tire carrying rim having an opening near oneend, and an in- Wardly projecting portion at the vedge of said openingremote from the split, and a plate connected to the other end of the rimand .projecting beyond the split, the free end o'ffsaid plate having anoutwardly projecting portion adapted to fit into the opening, said 'endbeing adapted to -ride against the edge o'f opening and inwardlyprojecting portion 'of rim base.

3. `Alone piece transplit tirecarrying rim having an' opening in thebase thereof near one end7 the edge vremote from 'the end rbeingprovided with an inwardly projecting guide -and retaining member, and a.plate rigidly connected to the other, end of the rim and extendingbeyond the split, the free end of Vsaid plate being provided with anoutward ly projecting portion adapted to fit into' the opening in therim base, Vthe end ofthe Aplate being shaped forengagement with theinwardly projecting guide and retaining meme il. A one piece transplittire carrying rim having an opening'in the base thereof, the metal artthe edge of said opening remote -from the end of the rim being carriedin-v wardly and providing a combined guiding and retaining member, aplate permanently connected to the opposite end of the rim and havingatits free yend an outwardly projecting portion adapted to fit into theopening in the rim base, said opening being lslightly larger than theoutwardly projecting portion of the plate whereby a limited amount ofcircumferential movement between rim ends is permitted. n

5. A one piece transplit demountable tire carrying rim having a plateconnected to one end and extending beyond the split, the free end ofsaid plate having an outwardly proj ecting portion, the rim base of theother end having an opening therein, said rim base Ahaving an integralinwardly projecting portion so disposed with reference to the edges ofthe opening as to hold the free end ofthe plate when positioned in theopening against radial movement.

In testimony whereof, I hereunto affix my signature. Y

FRED R. KLAUS.

